Smith ,2000 . The Third World Cities have seen extra- ordinary growth in their urban expansion since 1950 . The world 10 most populous cities are located in the third world countries . The urbanization has changed the way of life for the people living there . On one side these megacities have become economic giant for their countries , on other they have also created problems such as disease , congested traffic , pollution and sacristy of resources with a huge gap among haves and have...











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